YTSB019A0251601B SMD,4x6x2.5mm is a tactile switch with a RoHS-compliant lead-free design, manufactured by DGBZ. It utilizes SPST normally open contact technology to provide reliable and safe operation up to 2.5A at 125/250V AC. Its sealed construction is designed to protect against dust, moisture, and other environmental contaminants, making it suitable for a wide variety of applications. Its pressure-resistant actuator and anti-static contacts make it ideal for use in harsh environments where electrical shock and static electricity are a hazard. In addition, its switch position is clearly marked to ensure correct installation and use.